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I recently booted into Root via Ubuntu kernel recovery mode. When I finished what I was doing, and not altering anything in my system, I tried to reboot with shutdown -r now. This started various processes being shown terminating as indicated on the splash screen. But when the procedure reached a certain point it stuck with a message: A stopjob is running for Save/Restore Sound CardState. From that point it remained stuck, and the only thing I could do was to power down manually re my power button. I tried the same rebooting procedure again but it still stuck at the same point. However I later found that if I used shutdown -h now then my PC powered off normally, although that wasn't what I intended.

So is there any way while in recovery mode I can get past or skip a stage where the system gets stuck like this, without powering off my PC, and why is this problem occurring anyway?

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  • How long did you wait? I thought stop jobs generally had some sort of timeout on them but I think it can be quite long (2minutes?).
    – Philip Couling
    Commented Jan 18, 2020 at 9:37
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    @Philip Couling So did I, but in this case it seemed to continue indefinitely. In the end I gave it 10 minutes which I think is long enough.
    – Paul Benson
    Commented Jan 18, 2020 at 18:01
  • I've never had this happen and don't have my Linux box to hand to test it out. Apparently you can enable a rescue shell on TTY9. See here under heading "systemd hangs on startup or shutdown". Solution #4. This might give you some chance to indentify exactly what is stuck.
    – Philip Couling
    Commented Jan 18, 2020 at 18:36

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